HP 3C10115 - NBX card - 10BASE-T, networking hub, 8-port RJ45, 10Mbps shared Ethernet, 1-port 10BASE-2, BNC Retail
HP 28641-60015 - HP ThinLAN (10Base-2) transceiver - Has AUI and BNC connectors - (28641B) - Plugs into the AUI port Retail